Data sheet: http://people.openmoko.org/sean/datasheets/glamo3362/
Note that choosing Glamo has been accepted as a bit of a design mistake, both from performance point of view and openness point of view (3D part). So future Openmoko products will not feature the chip, but the currently (2008) selling Neo FreeRunner (GTA02) does have it and could be usable for 3D acceleration and other accelerations. Known limitations include (?) maximum framebuffer size of 512x512, which effectively excludes FreeRunner's default 480x640 out - so eg. the alternate resolution available, 240x320 (QVGA). is fine.